1 files changed, 45 insertions, 0 deletions
diff --git a/board/emulation/qemu-arm/qemu-arm.c b/board/emulation/qemu-arm/qemu-arm.c
index 1b0d543b93..f18f2ed7da 100644
--- a/board/emulation/qemu-arm/qemu-arm.c
+++ b/board/emulation/qemu-arm/qemu-arm.c
@@ -142,3 +142,48 @@ efi_status_t platform_get_rng_device(struct udevice **dev)
 	return EFI_SUCCESS;
 }
 #endif /* CONFIG_EFI_RNG_PROTOCOL */
+
+#ifdef CONFIG_ARM64
+#define __W	"w"
+#else
+#define __W
+#endif
+
+u8 flash_read8(void *addr)
+{
+	u8 ret;
+
+	asm("ldrb %" __W "0, %1" : "=r"(ret) : "m"(*(u8 *)addr));
+	return ret;
+}
+
+u16 flash_read16(void *addr)
+{
+	u16 ret;
+
+	asm("ldrh %" __W "0, %1" : "=r"(ret) : "m"(*(u16 *)addr));
+	return ret;
+}
+
+u32 flash_read32(void *addr)
+{
+	u32 ret;
+
+	asm("ldr %" __W "0, %1" : "=r"(ret) : "m"(*(u32 *)addr));
+	return ret;
+}
+
+void flash_write8(u8 value, void *addr)
+{
+	asm("strb %" __W "1, %0" : "=m"(*(u8 *)addr) : "r"(value));
+}
+
+void flash_write16(u16 value, void *addr)
+{
+	asm("strh %" __W "1, %0" : "=m"(*(u16 *)addr) : "r"(value));
+}
+
+void flash_write32(u32 value, void *addr)
+{
+	asm("str %" __W "1, %0" : "=m"(*(u32 *)addr) : "r"(value));
+}